Schumacher SF-125A Reading Meter, DC Connection Precautions, For SF-1275A, SF-5212A, SF-520MA

F. READING METER

FOR: SF-1275A, SF-5212A, SF-520MA

CHARGE % 100	75 50 25 0	CHARGE % 100	75 50 25 0
FULL CHARGE	POWER ON	FULL CHARGE	POWER ON
FULLY DISCHARGED BATTERY		APPROACHES FULL CHARGE
Initial charge current to the battery is		Charge current to the battery is
typically 10 amps. The needle points		typically 5 amps. The needle points
toward the 25% mark.		toward the 100% mark.
(SF-520MA has one LED, Full Charge)

CHARGE % 100 75 50 25 0

FULL CHARGE POWER ON

FULLY CHARGED BATTERY Charge current to the battery is 0 amps. And, the Full Charge

green LED glows. The needle points

toward the Full Charge LED.

G. DC CONNECTION PRECAUTIONS

1.Connect and disconnect DC output camps only after setting any charger switches to off position and removing AC cord from electric outlet. Never allow clamps to touch each other.

2.Attach clamps to battery posts and twist or rock back and forth several times to make a good connections This tends to keep clamps from slipping off terminals and helps to reduce risk of sparking.

H.FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE

A SPARK NEAR BATTERY MAY CAUSE BATTERY EXPLO- SION TO REDUCE RISK OF SPARK NEAR BATTERY:

1.Position AC and DC cords to reduce risk of damage by hood, door, or moving engine part.

2.Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.

3.Check polarity of battery posts. POSITIVE (POS, P,+) battery post usually has larger diameter than NEGATIVE (NEG, N, -) post.

4.Determine which post of battery is grounded (connected to the chassis). If negative post is grounded to chassis (as in most vehicles), see No. 5. If positive post is grounded to the chassis, see No. 6.

5.For a negative-grounded vehicle, connect POSITIVE (RED) clamp from battery charger to POSITIVE (POS, P,+) ungrounded post of battery. Connect NEGATIVE (BLACK) clamp to vehicle chassis or engine block away from battery. Do not connect clamp to carburetor, fuel lines, or sheet- metal body parts. Connect to a heavy gage metal part of the frame or engine block. (Figure 7)

6.For a positive-grounded vehicle, connect NEGATIVE (BLACK) clamp from battery charger to NEGATIVE (NEG, N, -) ungrounded post of battery. Connect POSITIVE (RED) clip to vehicle chassis or engine block away from battery. Do not connect clamp to carburetor, fuel lines, or sheet- mebl body parts. Connect to a heavy gage metal part of the frame or engine block. (Figure 8)

7.When disconnecting charger, disconnect AC cord, remove clamp from vehicle chassis, and then remove clamp from battery terminal, in that order.

8.See charge period for length of charge information.

GROUND

(NEG)

FIGURE 7 CONNECTION TO NEGATIVE

GROUNDED BATTERY

5